package com.nowcoder.community.util;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;

/**
 * 从request中获取cookice中的值
 * @author ProgramCat
 * @date 2023/3/29 12:13
 */
public class CookieUtil {
    public static String getValue(HttpServletRequest request,String name) {
        if(request==null||name==null){
            throw new IllegalArgumentException("参数为空");
        }
        Cookie[] cookies = request.getCookies();
        if(cookies!=null){
            for (Cookie cookie:cookies){
                if (cookie.getName().equals(name)){
                    return cookie.getValue();
                }
            }
        }
        return null;
    }
}
